Mason Materials Conditional Use/Surface Mining Permits and Reclamation Plan

2 Documents in Project


SCH Number
Lead Agency
Humboldt County
Document Title
Mason Materials Conditional Use/Surface Mining Permits and Reclamation Plan
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Timber Production
Document Description
The project involves renewal of, and modification to, Conditional Use/Surface Mining Permits and Reclamation Plan for continued mining operations on the quarry site known as the Mason Quarry. The Mason Quarry was originally developed in the 1950's for construction of Old Chezem Logging Road to provide access for the upper Redwood Creek Valley, and has been mined thereafter for the maintenance of Old Chezem Logging Road and County and State roads and highways. The County approved permits for existing operations in 1991 and allowed for the total extraction volume of 200,000 cubic yards of material over a 15-year period on a 5-acre portion of APN 316-163-02. A Conditional Negative Declaration was adopted with the project approval. the current project proposes modification to existing operations: 1) an increase in the annual extraction volume to 65,000 cubic yards for the 15-year permit term, 2) the option of blasting (although blasting has not occurred in the past and it is not anticipated that blasting will be necessary in the future, and 3) an increase in acreage to an approximate 10 acres to allow for possible expansion of the quarry on the area adjacent to the site that has been cleared of trees as part of a Cal Fire-approved "Less than 3-Acre Conversion Exemption", an exemption that is grated to a landowner one time per contiguous ownership. If approved, the permit will expire June 21, 2021.

Contact Information

Anita Punla
Agency Name
Humboldt County Community Dev. Dept
Contact Types
Lead/Public Agency


Cross Streets
State Highway 299 and Old Chezem Road
Parcel #
State Highways
Hwy 299
Redwood Creek
Other Location Info
Upper Redwood Creek

Notice of Completion

Review Period Start
Review Period End
Development Types
Industrial , Mining (Mineral Greywacke Sandst)
Local Actions
Surface Mining
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Cultural Resources, Drainage/Absorption, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality, Mineral Resources, Noise, Transportation, Vegetation, Wetland/Riparian, Wildfire
Reviewing Agencies
Air Resources Board, Major Industrial Projects, Cal Fire, California Department of Conservation (DOC), California Department of Fish and Wildlife, Eureka Region 1 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 1 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, North Coast Region 1 (RWQCB), California State Lands Commission (SLC), Department of Toxic Substances Control, Department of Water Resources, Resources Agency, Resources, Recycling and Recovery

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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